[2387] in linux-scsi channel archive
Re: BIG-SCSI-Problems
daemon@ATHENA.MIT.EDU (Richard Waltham)
Fri Aug 29 16:07:28 1997
From: Richard Waltham <dormouse@farsrobt.demon.co.uk>
To: KDombrofsky@compuserve.com (Klaus Dombrofsky)
Date: Fri, 29 Aug 1997 19:20:37 +0100 (BST)
Cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <199708290642_MC2-1E88-6A31@compuserve.com> from "Klaus Dombrofsky" at Aug 29, 97 06:41:59 am
Klaus Dombrofsky wrote:
>
> Hi there,
> i have a very big problem with my linux-machines.
>
> linux1:
> P100
> 32 MB
> Adaptec 2940UW with external ASS3000-Raid
> Symbios 53C81xx with external CDROM, TAPE, JAZ
> Kernel: 2.0.30
>
> linux2
> P200
> 128 MB
> Adaptec 2940UW with external ASS3000-Raid
> Symbios 53C81xx with internal CDROM, TAPE, JAZ
> Kernel 2.0.30
>
> Problem:
> When i make a very frequent access on a device on the symbios then it comes
> often to a scsi-reset and after this reset on the symbios-controller the
> system hangs, but theres no scsi-reset on the adaptec with the raid and the
> operating-system.
> As long as i make no access on the symbios-controller the system works
> well. But when i want
> to copy a lot of data onto the jaz or drive, then it cames to a scsi-reset
> often, but not always.
>
> Here is /var/log/messages
>
> Aug 29 11:42:23 linux1 kernel: scsidisk I/O error: dev 08:11, sector 279056
> Aug 29 11:42:26 linux1 kernel: SCSI disk error : host 1 channel 0 id 1 lun
> 0 return code = 28000002
> Aug 29 11:42:26 linux1 kernel: Current error sd08:11: sns = f0 4
> Aug 29 11:42:26 linux1 kernel: ASC=15 ASCQ=be
> Aug 29 11:42:26 linux1 kernel: Raw sense data:0xf0 0x00 0x04 0x00 0x04 0x42
> 0x32 0x11 0x00 0x00 0x00 0x00 0x15 0xbe 0x00 0x00
>
> "The upper messages comes very often"
>
Device 08:11 = /dev/sdb1 ? Jaz ?
Device is reporting in the sense data it has a HARDWARE error! No wonder you
are having problems.
ASC=15 is a positioning error, ASCQ=be is vendor unique so without Iomega's
SCSI spec could be anything:(
Looks like it could be a problem with Jaz drive itself. Iomega made a batch
of 75,000 bad cartridges. Check the Iomega web site for details.
Richard
[log data deleted]
>
> I already checked the cables and the terminators.
>
> Is it a problem to disable DISCONNECT on the symbios ?
>
> Why does the reset on symbios hang the whole system ?
>
>
> An additional Problem on the linux2:
> Sometimes, when there are many read/write-accesses on the adaptec with the
> raid-system theres also a scsi-reset and then the ystem hangs, it must hang
> because the OS is running on the raid.
> But sometimes the raid-system is not recognized any more and the system
> hangs without any kernel-messages. Is it a problem, when i have on a 2940UW
> a SCSI-II-Raid ?
>
>
> Klaus-Peter Dombrofsky
> kdombrofsky@compuserve.com
>
> ###################
> Don't let your friends boot NT
> ###################
>
--
Richard Waltham | Work: richard@digtalinterface.demon.co.uk
At home in | Home: dormouse@farsrobt.demon.co.uk
Southampton UK | Compuserve 100421.1276
